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This commit makes a minor change in the wording of the description of the errors2 exercise to avoid potential confusion, changing: "A player of the game will type in how many items they want to buy, and the `total_cost` function will calculate the total cost of the tokens." to "A player of the game will type in how many items they want to buy, and the `total_cost` function will calculate the total cost of the items."
Error handling
Most errors aren’t serious enough to require the program to stop entirely. Sometimes, when a function fails, it’s for a reason that you can easily interpret and respond to. For example, if you try to open a file and that operation fails because the file doesn’t exist, you might want to create the file instead of terminating the process.